Visual Studio Source warning

I am developing my own plugin using VS2022 and rhino 8. I get this warning in the beginning when I launch rhino via play button from VS:

… I just click cancel and nothing happens, but it’s annoying and I don’t know what that means… Can anyone help?

It means it tries to find a file which which doesn’t exist anymore (Guid named==temporary file?) . I don’t know where it is exactly referenced but just open the .csproj or .sln file in xml view (e.g. Notepad++) and search for this name. You’ll likely find a dead reference to it there. Also check pre- and post-build actions.

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